The Cordlef is a Japanese TLR camera taking 4×4cm exposures on 127 film, made around 1940 and attributed to a company called Kondo Seikō.[1] It was certainly the first Japanese 4×4 TLR. The suffix lef is pronounced the same as "ref" in Japanese, it is an abbreviation often used for "reflex" in Japan at the time.

The Cordlef is said to be based on the body of the Seica and Andes Four. A twin-lens reflex box is attached to the front of the body, replacing the telescopic tube. There are strap lugs at the top, on each side of the mirror cage. A small plate inscribed FOUR is screwed to the side of the reflex box, near the bottom. The viewing hood has an X-shaped pattern, written KSK at the center. The main nameplate is written CORDLEF.

The two lenses are reported to be Helios Anastigmat 50/4.5 (certainly made by Tōkyō Shashin Kōgaku).[2] They are geared together by two gears, one on each side, protected by a cover plate. The right-hand gear slightly protrudes from this cover and is used as a focusing wheel. The shutter is said to give T, B, 5–200 speeds.[2]

The only surviving example observed so far is pictured in Sugiyama.[2]